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Molecular mobility of nitroxide spin probes in glassy polymers. Quasi-libration model

✍ Scribed by Daria A. Chernova; Andrey KH. Vorobiev

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
232 KB
Volume
47
Category
Article
ISSN
0887-6266

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πŸ“œ SIMILAR VOLUMES

Molecular mobility of nitroxide spin pro
Molecular mobility of nitroxide spin probes in glassy polymers: Models of the complex motion of spin probes
✍ Daria A. Chernova; Andrey Kh. Vorobiev πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 480 KB πŸ‘ 1 views

## Abstract The rotational mobility of molecules in glassy polymers was investigated by quantitative simulations of electron spin resonance spectra of nitroxide spin probes with molecules of different sizes. The motional models were determined unambiguously when the experimental and calculated spec

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The double-modulation ESR spin-probe technique was emmotion regime, the homogeneous linewidth (1/T 2 ) is larger ployed to study slow-motional dynamics in amorphous polymer than 1/T 1 , one can expect that the measurement of T 1 would matrices of polybutadiene, polyisobutylene, poly(methyl methacmak

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## Abstract Thin films of spin‐probed and spin‐labeled poly(methyl methacrylate) (PMMA) have been examined by electron spin resonance (ESR) at X‐band frequency (9.2 GH~z~) and at various temperatures. Direct spectral evidence is presented to indicate that the composite ESR spectra observed in a cer